Using UVWarp modifier to position part of an image on an object
Found out how to do it through this forum. https://blenderartists.org/t/uvwarp-not-mapping-correctly-with-lego-mouth-annimation/1118084/3 When imported the image into the file, I scaled it up and then set the scale back to 1. This caused the issue. However, when trying to fix it, I imported the image again and did not adjust the scale. Now it's working.